POOR SERVICE

I informed old mutual 3 years ago that my flat then was paid up and will no longer be ceding the life policy to Nedbank . i was asked for ridiculous documents. i then let it go. then this time the flat has been sold and all paperwork has been provided, they need a letter from Nedbank to show that the life policy should not be ceded to them. a quick check on the documents provided and the deeds office do show the property does not belong to me anymore so why should i get a letter from Nedbank?????????????????????????????????//// why would i cover a property that is nt in my name.